Technical Information

Materials

F201

F201 or Kalrez®, by DuPont, is made from a Perfluoroelastomer possessing exceptional resistance to degradation by aggressive fluids and gases.  Kalrez combines the high temperature resistance of Fluorocarbon Elastomer (such as Viton®), with the chemical inertness of Teflon®.

Kalrez provides long term service in virtually all chemical and petrochemical process streams. Kalrez parts are offered in several compounds with varying tensile, elongation, hardness, compression set and temperature range. Kalrez® is used for severe chemical exposure and high temperatures, and in oil exploration and refining for chemical processing and transportation.  Because of its high cost Kalrez is generally used only when no other elastomer is appropriate.

Kalrez should not be exposed to molten or gaseous alkali metals (sodium). It also can significantly swell upon exposure to some fluorinated solvents, fully halogenated freons, and uranium hexafluoride.

Temperature Range: -40°F to 500°F (-40°C to 260°C)